Description
75 Turbo Evo FIA Group A car, built for Alfa Romeo's entry into the 1987 World Touring Car Championship.
The Group A race cars were based on the low volume production 75 Turbo Evo road car, 500 of were produced. These had a range of modifications which formed the basis of the FIA Group A homologation A5307.
This Alfa Corse built race car, No. 10, was the works development vehicle, and was never raced in period. It has a range of unique features, now validated to be original.
The car was brought into the UK in 2004 and has been raced occasionally in the Alfa Romeo and Super Touring Championships.
Purchased by the current owner in 2014, the car was found to be in remarkably original condition. With the help of Italian engineers and the Dutch author of the Alfa 75 definitive history, the provenance of this car has been validated. So here we have a unique piece of Alfa Romeo racing history.
The car is outstanding condition, and decaled to replicate one the WTCC team race cars. The only significant changes from original are Ohlins. dampers and a more modern ECU. Various components carry a Alfa Corse ID and/ or date stamps. A range of spares are available, including original ECU, engine, transmission and wheels. The 75 Turbo Evo road car was the basis for Group A homologation, featuring a body kit and minor suspension and engine changes from the mainstream production 75 Turbo. 500 cars were built, to meet the minimum homologation requirement. The race homologation A5307 detailed further changes allowed for racing, covering extensive suspension, braking and drivetrain changes, plus a range of safety related related items. On this basis a batch of cars were built by Alfa Corse for the 1987 season using body-in-white shells. The 75 was not a winner in 1987, partly due to power limitations dictated by the turbocharger fitted to the baseline production cars. Alfa withdrew from the series, but continued to develop and supply cars for the Italian Touring Car Championships, plus the small number of fire-breathing IMSA cars.
Car No. 10, in it's development role, pioneered a range of modifications, some of which reached the factory race cars in 1987 and which were then used on the later domestic championships. The key feature was an independent rear suspension system ingeniously created from the production de Dion system, and homologated in A5307. The car was also built with RHD, to address a 75's front weight imbalance problem. Other changes included revised radiator and intercooler for improved cooling, carried forward onto the later cars. There is also early use of carbon-fibre for the strut brace. All the cars ran a first generation Bosch Motorsport Motronic EMS, also fitted to the Porsche 956.
